Active clinical trials for "Osteoporosis"

There is current interest in the role of vitamin D in the prevention and treatment of many chronic diseases, including osteoporosis, cancer and neurological disease. The majority of vitamin D in the UK comes from the action of sunlight on skin, and very little from dietary sources. Half of the adult United Kingdom (UK) population have vitamin D insufficiency (according to the Institute of Medicine definition). There are still several important unknowns, including what the optimum levels of vitamin D are, and whether the same intake of vitamin D is appropriate for all sections of the population. Low 25(OH)D and high parathyroid hormone (PTH) have been observed in people with high adiposity (obesity), and the summer rise in vitamin D is blunted in obesity. The potential causes of low 25(OH)D levels include an inadequate supply of vitamin D (by reduced sunlight exposure or poor nutrition), the large pool size of adipose tissue or increased metabolic clearance rate. The investigators will measure metabolites of vitamin D and the kinetics of 25(OH)D using stable isotope techniques in lean, overweight and obese men, women and children to establish whether age, gender and obesity affect vitamin D metabolism and clearance rate. If low 25(OH)D in obesity is related to poorer skeletal health and is due to increased clearance of 25(OH)D or large pool size, then total requirements, and hence supplementation requirements, would be larger for obese people than for lean people.

This study is designed to answer the question as to whether the sympathetic nervous system is an important determinant of bone metabolism in humans.

The purpose of this study is to validate the long-term benefit of denosumab for osteoporosis treatment in a real-world clinical practice setting. We hypothesize that continued therapy (36+months) with denosumab will increase both trabecular bone score (TBS) and femur strength index (FSI) and reduce fracture and other bone health risks among post-menopausal women with osteoporosis.

A randomized, open-label, single-dose, crossover study

This study evaluates the efficacy of the probiotic food supplement Vivomixx in the prevention of bone loss occurring in post menopausal women with breast cancer treated with an aromatase inhibitor. Half of the participants will receive Vivomixx while the other half will receive a placebo. The primary endpoint is to assess changes of bone turnover markers during the period of 6 months.

The purpose of this study is to evaluate the long-term effectiveness, safety, and tolerability of FORTEO in a larger, more diverse "real world" population than studied in clinical trials

The investigators earlier have shown that treatment of patients with juvenile osteoporosis with alendronate (Fosamax) for 12 months increased the bone density without side effects. In an open label study (10 patients) and double blind, crossover study (11 patients alendronate and 11 patients placebo), the investigators have further observed that alendronate increased the bone density significantly where as placebo (calcium and vitamin D) increased only minimally. These trials were completed. Thus, a post study is designed to evaluate the current status of the bone density and fractures after the patients discontinued the alendronate treatment. No treatment is involved.

This study will look to see if there are changes in the blood cells that are associated with bone disease and sort out effects that are due to the HIV virus itself, the medications and see if faster aging occurs in the cells of HIV infected persons. Bone disease will be measured by a special X-ray called a DEXA scan. A DEXA scan is used by doctors to see if someone has normal bone mass for their age or if there is thinning of the bones. The purposes of this study are: to learn how common bone disease is in HIV infected patients over the age of 50 years that receive their care at the CORE Center to see what are the common causes of bone disease in older HIV infected persons to see if there are differences in blood cells and levels of cytokines in patients who do or do not have bone disease, as this may help researchers determine the cause of bone disease.

The specific aim of this proposed project is to implement a standard process for integrating MedlinePlus health information prescriptions into the clinic workflow. Hypothesis 1: Individuals in the intervention group who receive tailored email health information with provider selected MedlinePlus links and added commentary for patient specific conditions will be more likely to seek information / use MedlinePlus compared with individuals in the control group. Hypothesis 2: Individuals in the intervention group who receive tailored email health information with provider selected MedlinePlus links and added commentary for patient specific conditions will be more satisfied with the information received compared with individuals in the control group.

Thiazolidinediones (TZDs) are a commonly used antidiabetic drugs currently used by over a million patients in the United States. Recent studies have shown that treatment with TZD may increase the risk of bone fractures. The cause of bone loss is not known. We believe that TZD may cause increased accumulation of fat in the bone marrow, which may cause decrease bone formation and weak bones. .